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~~~ ACZ Inc. <br />Engineering and Environmental Servlcea <br />1475 Pine Grova Road, Suite 109 ~J~ <br />P.O. Box 774018 77 <br />' Steamboat Springs, Colorado 80477 <br />303879.6260 <br />t August 12, 1993 <br />Patricia A. Nelson <br />Colorado Department of Health <br />Water Quality Control Division <br />4300 Cherry Creek Drive Sou[h <br />Denver, Colorado 80222 <br />Re: Kerr Coal Company - Marr Mine (CDPS Permit COG850021) <br />Stormwater Exemption Requests <br />' Dear Ms. Nelson: <br />Kerr Coal Company (Kerr) previously submitted Stormwater exemption requests for effluent <br />limitation exceedances on 4/1/93, 4/7/93, 4/14/93, 4/21/93, 4/29/93 and 5/5/93. These <br />requests were submitted on a recen[ly developed "check-off form' to simplify both reporting <br />and WQCD review. As indicated by your letter of June 8, 1993, this general approach is <br />' acceptable but the request submittals were not adequate to meet WQCD documentation <br />requirements for the specific information items noted in your 1e[ter. <br />On receipt of your letter, we reviewed various options to provide the required information and <br />' contacted Jon Kubic of your office [o discuss both options and proposed documentation <br />approach. As a result of these discussions, the Stormwater exemption request form was revised <br />and a draft was submitted for WQCD review and comment. Further discussion resulted in <br />' concurrence that the revised form and proposed approach for documentation of climatic <br />conditions would meet WQCD informational needs. We aze, therefore, submitting with this <br />lec[er Stormwater exemption requests for the above noted dates on the revised forms. <br />t Separate exemption requests are provided for each date on which an effluent limitation <br />exceedance occurred. Each exemption request includes the exemption request form letter and <br />appropriate water sample analysis repon sheet(s). In addition, in order to document snowmelt <br />' or Stormwater runoff conditions, monthly climatic data summary sheets from the National <br />Weather Service Field Office in Walden, Colorado are provided for each month during which <br />one or more exemptions are requested. <br />' Please review the accompanying Stormwater exemption requests and feel free to contact me with <br />any questions or commen[s. We appreciate your considers[ion and Jon Kubic's assistance in <br />resolving this matter. <br />' Sincerely, <br /> <br />1 <br />atachments <br />ca J. Kubic/WQCD <br />R. Price/DMG (w/attachments) <br />J. Mossman/Kerr (w/attachments) <br />G. Patterson/Kerr <br />P. Goldsmith/EFC Denver <br />